Engine-valve.



ENGINE'VALVE.

APPLICATION FILED FEB. 28, 1912.

Patented Mar. 21, 1916.

2 SHEETSSHEET l- H. U. LUHILN ll.

ENGINE VALVE. APPLICATION FILED FEB. 28. 19 I2.

1,176,153. Patented Mar. 21,1916.

2 vSHEETSSHEET 2- HENRY G. LORENTZ, OF HARTFORD, CONNECTICUT.

ENGINE VALVE l EJ191531.

Specification of Letters Patent.

Patent ed Mar. 2 i. Hi i Application filed February 28, 1912. Serial No. 680,490

To all whom it may concern;

lie it known that l, lll-INRY G. liouus'rz, a citizen oi the United States, anda resident oi Hartford, in the county of llart lord and State (it Connecticut, have invented a new and useful Improvement in l lngincl alves, of which the following is a specilication.

lily invention relates to mechanism :for controlling the inlet and exhaust passages of an engine, and an object of the invention, among others, is to provide a simple and ellicieiit mechanism for accomplishing this purpose.

One form of device en'ibodying my invention and in the construction and operation of which the object above set out, as well as others, may be attained, is illustrated in the accompanying drawings, in .vhirh Figure 1 is a. view in cross section through a cylinder on plane denoted. by dotted line 1-1 of Fig. 2. Fig. is a view in longitudinal section through a cylinder on plane denoted by dotted line 2-2 of hi g. 1. Fig. 3 is a view in elevation of one of the cylinders of an engine, the balance being broken ofi'. Fig. 4: is a detail perspective view showing a slide valve The invention is es 'iecially applicable to an engine oi the explosive type, and for this reason I have selected such for the purpose of illustrating and describing my invention herein, although it Will be understood that the invention is not necessarily limited to an invention of this class.

In the accon'ipanying drawings the numeral 5 denotcsa cylinder, (of which there may be a plural number embodied in. a single structure if desired), having the usual chamber 6 for a piston (not shown). A base 7 is formed at the bottom of the cylinder that may rest upon any suitable bed such as that forming the cranlc case of an engine of this type. Openings 8' are formed throi'igh this base for the reception of valve rods 9 extending to valve mecl'ianism to be hereinafter described. The upper part 01'' the cylinder is enlarged diametrically to constitute a water jacket and in which a water chamber 10 is formed, depressions ll being made in the wall oi? the water jacket and in which the valve rods 9 are located.

An inlet chamber or passage 12 is formed in one side of the cylinder near an end and an exhaust chamber or passage 1.3 is formed in the opposite side at the cylinder.

This

end of the cylinder is counter-bored as at passages.

ll, recesses opening out or the counlerbored part on diametrically opposite sides and constituting recesses 15 separated from the inlet and exhaust chambers by webs 1(3 rising tl'rom the flows of the inlet or exhaust A cylinder head 17 is secured against the end of the cylinder and has a hub 18 projecting into the end of the cylinder and resting upon a shoulder 19 at the bottom of the counter-bore 14. This hub is slightly smaller in diameter than the 'coun terbore providing circular.slideways 20 for valves 21. These valves are curved preferably on the arcs of circles, the valves having ports 22 opening to the inlet and exhaust chambers 12 and 13 each on opposite sides of a bridge 28, said bridges closing the mouths of the recesses 15, thus forming a well and shutting ofl the recesses from the explosion chamber, said recesses being also shut oit from the inlet arid exhaust by the webs l6. Flanges extend laterally from the webs on the arc ofa circle of which the center of the cylinder is the center said webs forming seats for said valves. lnlet and exhaust ports 232 l; are formed through the head into the chamber in the interior thereof, which constitutes an explosion chamber Each of the valves has an ear 2c located in the well 'lormcd by the valve and web it and to which car one oi the valve rods is secured, it being noted that this construction secludes the valve connections entirely 'l'roin the inlet and exhaust passages and l'ron'i the explosion chamber, so that there is no chance for the products of combustion exerting any injurious ell'cct upon the valves and their operating mechanism. The usual opening 27 for a spark plug is 'l'ornieifi in the cylinder head, opening into the cxplosion chamber. Any' usual and ordinary i'orm-ol" mechanism 'lor actuating the valve rods may be employed, this not forming part of the invention illustration theree!" has been omitted. It will also be understood that Where the term inlet or exhaust is used in describing the construction. of any mechanism, this term may apply equally to either the inlet or exhaust.

it will be understood that the mechanism herein shown and described may be altered and changed to a considerable extent and yet embody the invention, and I do not therefore limit the invention to a valve mechanism constructed in exact accordance herewith.

ltli

ll i

I claim-- I 1. A cylinder having an'explosio'n chamher with a passage communicating therewith and a counterbored end, a web projecting from the floor of said passage and counterbored end and forming a well with an opening through the bottom thereof, a cap to' ing from the floor of said counterbored end and passage and forming a well having an opening through the bottom thereof, said WGb having latera'lly'extending flanges arranged eoncentricallv with the axis of the cylinder, a cap to close the opening into said cylinder and well, said cap having a projection of a size to form a space between it and the flanges of said Web, a valve of circular form located in said space and having an ear extending into said well, and an operating rod secured to the valve and extending through the opening in the bottom of said well. HENRY G. LORENTZ.

Witnesses: ARTHUR B. JENKINS,

Eva L. SToUeH'roN. 

